Pile-cutting machine



J. w. wuuscu.

PILE (JUTTING MAGHINE. APPLICATION man man. 21, !9 2o.

Patented Apr. 18, 1922.

3 SHEETSSHE ET l.

J. w. wuuscu. PII.E CIJTTING MACHINE. APPI.ICATION FILED FEB. 27. 1920.

1,413,31o Patented Apn18,1922.

y 3 suzcrs-suuar 2;

II TTORNE Y8 J. W. WUNSCH.

' PILE CUTTING MACHINE.

APPLICATION man FEB. 27. 1920. 1,413,310.

Patented Apn 18, 1922.

3 SHEETS-SHEET 3.

the upper. which are also on the same plane. The upper saws 20 ancl 19 are so zirrai1garl that they rotate in opposite directions ancl that their teeth al1nost, but not qnite,* tucn each other; the teeth of each saw are arrange'ad in staggererl position relative to the teeth ol the other, and they are placecl so near together that, when both rotate as indicated by the arrowsthey cut ofl the m'aterial acteclupon without le'aving any ridge of material between them, as they wouldif the teeth of the saws dicl not mutually interla l? elow the saws 17 ancl 19 are mountecl saws 18 and 20, respectiVely of smaller dia1neter than the aforementioned saws, tho diflerence between. the cliarneter of thelatter ancl tlxe former being such that the finished tenon Will be o'f ehe desirecl wiclth: siinilarly the distance between thenpper LIltl lower saws is Such as is clesiredfor the height 01: the saicl tenon.

The aforementionecl vertical saws 23 and 24 are mounted on such a level'that their lowennost tangents Will hie in the same plane as the lower horizontal saws. The vertical shafts 17, 19, ancl30 are provided with cl'etachzible cou plings so that the lower portions of saicl shafts may be separated froin the upper in order to lift the lower portion of the frame, ancl=the saws, as above mentionecl, in order to repair or replace any part.

The driving mechanism of the saws is indicatecl in lfligs. 3 an(l 4 the sarne being locatecl in the cab and perated loy any suitaole methocl. The motor 41 drives a shaft 40 whiol1 is connectecl by gears ancl a Worin, as shown, to the shaft 39, which rlrives two of the wheels 31 ancl thus propels the cab 25 along the hea1n 1. A seooncl motor 37 rlrives a shaft 36 which is geared to anrl drives the shaft 36 the latter, by the interposition 01" bevelgears, driving the vertirral shaft 30. The shaft 36 is also proviclecl with an extension upon whioh is mountecl a vertical bevel gear Wl1l('ll engages a horizontal bevel gear rigid to the shaft 35. This shaft. through the bevel gears shown, clrives the vertical shafts 174 ancl 19% Now the operation of the machine Es as follows: The piles 9, 10, 11, 12, etc. being between the supporting piles; 8 ar'e abont to be trimmecl and tenonecl. Both motors 37 and 11 are actuatecl, causing the saws to rotate and the cab to advance; the motion of the cab may be in either direction without altaring the operation 0'f the saws; prelerably, hwever, the motion .is that of left t0' right, Fig. l, so that the le velling or horizontal saws first enconnter the pile, ancl finally the vertical saws. It is apparent that the upper horizontal saws Will cut ofi' th'e. top of the pile,this operation being knownirs levelling, While the lower horizon tal saws Will cut the shoulclers of the tenon; thereupon the verticalis'aws engage the pile, ancl remove the sicles from the pile above the sh0ulders of the tenon, thus then leaving a clean-cut levelled and tenoned pile.

1:3 it is desired only to level .the piles, without tenoning, the rear or vertioal saws und the lower horizontal saws may be omitted. l

lt is apparentthat I have invented a machine which eliminates all the troublesome hanclwork involvecl in cutting and tenoning pils for pie'r anti bridge construction. Especially is the latter awkward because, in building a pier or briclge, the tide often rises over the top of the piles, or above the level of the tenon in Whioh case further workhas to be suspenclecl until the tide has rereded. My rhachine has been found to -cut just as Wll uncler water as above, So

that the work of cutting the piles may be carried on continu'ously without interruption This latter advantage, together wit-h the obvious high rate at which my machin can cut piles, makes it possibleto cut the pilesfor a brid ge or pier in a s mall fractidn of the time requirecl loy the band method, and my machine also insures absolutely level pile tops and tenons. 1

After the cabhas traveled the Width of the beam l, the latter is then advancecl alo'ng the rails 32 by actuation of the motor 5, to tho nextrow of piles, andthe cab is started back With the saWs operating. Thus the fast rate at which my inaohine enables the piles to loe cut an(l tenoned is reaclily obvious.

Having thus deseribed my iiwentiori, what 1 olai1n ancl desire to seici1'ie by Lettrs Patent is as follows:

l. A machine for l vellinig and tenoning' piles, oolumns, and the like, comprisirig a travelling.cab a fra1i1e susjpndecl from said, cab, vert1cal shalts hav1ngr bear1ngs m sa1cl fran1e, a horizontal shalt havii1g ve1tical saws spacecl apart thereon and being be'velgeared to one ol said vertical shafts, two Of said vertical shafts beihg provided with two horizontal sa-Ws each, tlie upper saWs of both shafts lying mutually adjacerit andin the 7 san1e plane and so arrangecl thzit soine of the tee th 0f one1 at all tnnes project a distzince between the spaces between the teeth of the other, the lowr of s aid horizontal saws being spacerl apart and lying inlhe Same plane. k

2 A maohine f0r levelling and tanon'ihg piles, coluni1is, ai1d the like, cornprisiiig a travelling cab, a frame si1spendecl therefrom, vertiral shafts havin, i bearings in Said frame; a horizontal shzift having ver'tical saws spaoed apart atadistance gquiil to the width of the desired ti10n,and biiig bevolgearecl to one 015 saicl vertical sha'fts two of saicl vrtical shzlfts being'provided With two horizontal saws eachthe upper saws of te'non, and being spaced ap'a rt and lying i11 the sameplane. i

Signe'd at-New York, in the county of 10 New York and State of New York, this 20th day 015 February A. 1920.-

JOSEPHW. WUNSCH. 

